The Influence of Bariatric Surgery on Serum Bile Acids in Humans and Potential Metabolic and Hormonal Implications: a Systematic Review

Abigail J Johnson, Levi M. Teigen, Cyrus Jahansouz, Carrie P. Earthman, Shalamar D. Sibley

Research output: Contribution to journalReview articlepeer-review

19 Scopus citations

Abstract

Recent research suggests a mechanistic role for bile acids (BA) in the metabolic improvement following bariatric surgery. It is believed that the hormonal and metabolic effects associated with changes in systemic BAs may be related to the farnesoid X receptor (FXR) and a G-protein coupled receptor (TGR5). This systematic review examines changes in systemic BAs following bariatric procedures. Studies were included if they reported the measurement of systemic BAs in humans at at least one time point after bariatric surgery. Eleven papers were identified that met the inclusion criteria. Seven studies reported the effect of Roux-en-Y gastric bypass (RYGB) on fasting BAs. The majority (6/7) reported that fasting BAs increased after RYGB. Data regarding fasting BAs after vertical sleeve gastrectomy (VSG) and laparoscopic gastric banding (LAGB) are inconsistent. Data regarding post-prandial BA changes after RYGB, VSG, and LAGB are also inconsistent. More research is needed to investigate the connection between BAs and the metabolic improvement seen after bariatric surgery.

Original languageEnglish (US)
Pages (from-to)441-450
Number of pages10
JournalCurrent obesity reports
Volume4
Issue number4
DOIs
StatePublished - Dec 1 2015

Keywords

  • Bariatric surgery
  • Bile acids
  • FXR
  • Gastric bypass
  • Metabolism
  • Obesity
  • RYGB
  • TGR5
  • Vertical sleeve gastrectomy

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